body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0;
}

header {
    background-color: #007bff;
    color: white;
    width: 100%;
    text-align: center;
    padding: 10px 0;
}

.container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 20px;
    max-width: 1200px;
    margin: auto;
}

.box {
    background-color: #fff;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    border: none;
    border-radius: 5px;
    background-color: #007bff;
    color: white;
}

button:hover {
    background-color: #0056b3;
}

img {
    max-width: 100%;
    height: auto;
    margin-top: 10px;
}